自動準直機 的英文怎麼說
中文拼音 [zìdòngzhǔnzhíjī]
自動準直機
英文
autocollimator- 自 : Ⅰ代詞(自己) self; oneself; one s own Ⅱ副詞(自然;當然) certainly; of course; naturally; willin...
- 準 : Ⅰ名詞1 (標準) standard; guideline; criterion; norm 2 (目標) aim; target Ⅱ動詞1 (依據; 依照)...
- 直 : Ⅰ形容詞1 (成直線的; 硬挺的) straight; stiff 2 (跟地面垂直的; 從上到下的; 從前到后的) erect; v...
- 機 : machineengine
- 自動 : 1 (自己主動) voluntarily; of one s own accord 2 (不憑借人為的力量) automatic; spontaneous 3 ...
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In the system, the collimation semiconductor laser - scanned beam scanning two perpendiculars direct of one plane of the measured workpiece at the same time is made. the beams with the dimension information of two perpendiculars direct are processed by the scanning receive system, the high - speed photoelectric transition and electronic data process. two measured results of the diametric directs and ellipse tolerance, etc, parameter, of the turning workpiece on the same plane are obtained by non - contact automatic measurement
在單向激光掃描檢測技術的基礎之上,提出了一種雙向激光掃描檢測系統,其採用激光掃描檢測技術與特殊光學系統相結合,用準直半導體激光掃描光束對被測工件徑向某一截面的兩個相互垂直方向同時掃描,經掃描接收光學系統、高速光電變換、電子學系統和微機數據處理系統,對將攜帶有垂直方向被測量信息的光束進行處理,實現了回轉體工件同一截面兩個垂直方向的徑向尺寸和橢圓度等參數的非接觸自動測量,解決了同時非接觸測量回轉體零件同一截面兩個徑向尺寸的難題,它具有高速,高精度和非接觸自動測量等特點。For the bldcm which has a pseudo - sinusoidal back - emf waveform, this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple. the main aspects for the implementation of this method are analyzed, including the initial orientation of the voltage vector, reasonable choice of the impedance angle and the advance commutation angle, and estimation of the successive rotor positions
針對反電動勢類似正弦的準正弦波反電動勢無刷直流電動機,本文提出一種基於六個離散位置信號的自同步svpwm (電壓空間矢量法)控制方法,用以削弱電磁轉矩脈動,分析了實現這種方法的主要控制環節,包括起動時電壓空間矢量的初始定位,阻抗角與電流超前角的合理選擇以及連續轉子位置的估計等。Furthermore, this dissertation also gives a comprehensive analysis and comparison to the torque ripple factor, torque - current ratio and other aspects for pseudo - sinusoidal emf bldcm drived by 120 conduction mode, 180 conduction mode and self - synchronous svpwm mode respectively. the simulation and the experimental results indicate that self - synchronous svpwm method is more effective for minimizing the torque ripple without any expense of the torque - current ratio when the crest width of the back - emf waveform is less than 107 electrical angles
對準正弦波反電動勢無刷直流電動機在120導通方式、 180導通方式和自同步svpwm三種控制方式下的轉矩脈動系數、轉矩電流比等方面進行了全面的分析與比較,模擬研究和實驗結果表明,當反電動勢的平頂寬度小於107電角時,採用自同步svpwm控制方法可以在不損失轉矩電流比的基礎上,更有效地抑制電磁轉矩脈動。During the circuit design, the author analyzed the basic principle of the direct current motor, pwm control, h - bridge power driver, and two control techniques of h - bridge power drive circuit, designed its general structure, so the feasibility of the design is confirmed. then, reference, oscillator, power dmos gate drive circuit ( charge pump, bootstrap ), and dead time generation circuit are designed and analyzed in the sub - circuits. a current - controlled oscillator is presented in this thesis
在電路設計中,作者介紹了直流電機的工作原理和數學模型、脈寬調制( pwm )控制原理、 h橋電路基本原理和h橋功率驅動電路的兩種控制模式,設計了驅動電路的總體結構,給出了電路的功能模塊,確定了設計的可行性,然後在子電路模塊中,重點分析設計了基準源電路、振蕩器電路、高端功率管柵驅動電路(電荷泵及自舉電路) 、低端功率管柵驅動電路和死區時間產生電路。After target is detected the on - board avionics suite in combination with the automatic control system of the helicopter solve the task of bringing the helicopter to the designated point and automatic firing of the weapons selected by the pilot
當捕獲目標后,機上的自動控制系統與電子系統將解算任務數據,引導直升機飛向敵潛艇水域,並在飛行員指令準許下自動發射武器進行攻擊。It takes one hour to get the factory from cbd, beijing city. it covers an area of 20, 000 square meters and workshops occupy 13, 000 square meters. the all - sealed workshops provide a clean environment for manufacturing, the safety detective equipment and strict quality control system ensures reliability and sanitation standards of products
工廠全封閉的生產車間確保了生產環境的清潔衛生,配套的生產設備匯集了當今所有軟性填充玩具的專用機械,形成從自動沖壓下料,縫紉製作,氣壓訂眼直至機械填充,已初步形成了以流水線作業方式為主的準機械化生產形式,確保了產品造型的一致性和產品質量的穩定性。At first, the author analyzed some chief factors such as light beam drift and atmospheric turbulence that affect the precision of the laser collimation in brief. then, the author studied the plan of the laser collimation generating nondiffracting beam and automatic level system with high precision. at last, the author completed the measurement of the straightness guideway by using ccd ( charge coupled device ) as the receiver and computer imaging processing
文章首先簡要地分析了激光自身漂移、大氣湍流等影響激光準直精度的主要因素,然後對系統的激光準直方案進行論證,並確定了無衍射光束的生成方案、高精度自動安平系統的結構方案,最後以ccd為接收器件,通過計算機圖像處理,完成對軌道直線性的測量。Computer control system incepts two video signals, real - time disposes video, obtains undershoot values and relative distortion of vessel by combining two measurement results
計算機控制系統接收兩組光電自準直平行光管的視頻信號,進行實時圖像處理,得出動態脫靶量,並對兩路圖像的測量結果進行疊加得出艦艇的相對變形量。The new angular distortion real - time measuring system is developed, which utilizes photoelectric self - collimation parallel optic equipment, replicate optic equipment and other equipment fixed on desk, using computer control system to realizes real - time measuring vessel distortion
摘要研製一種新型的角變形實時測量系統,其利用布設在甲板上的光電自準直平行光管和折轉光管等相關設備,通過計算機控制系統實現實時測量艇體兩維動態變形量。The origin of the fund - management stimulating problem is that the standard of rational agent ’ s activities is utility maximum. but, in the reality, the fund investor and the fund administrator are a kind of consignation and there is information asymmetry. the fund investor ( principle ) wants to make the fund administrator ( agent ) act according to the benefits of the former, but the investor ca n ' t observe the investment activity of the administrator directly and in time. he can only observe other variables which are decided by the administrator ’ s activity and other outside uncertain factors
基金激勵問題產生的根源在於理性人的行動都以自身效用或利益最大化為標準,但在現實中,基金投資者與基金管理者是一種委託代理關系且兩者之間存在著信息不對稱,基金投資者(委託人)想使基金管理人(代理人)按照前者的利益選擇行動,但投資者不能直接及時地觀察管理人的投資行動,他能觀察到的只是另一些指標變量,這些變量由管理人的行動和其他外生隨機因素共同決定。In order to study the vibration in the artillery traveling more accurately and completely, a tire force model of non - linear and self - adapting stochastic contacting mark is set up, and this model provides a good method to study the driving system ' s horizontal and vertical excitation caused by the plainness road surface. the suspension of the tractor is simplified by the model of spring - damp system, and the artillery torque rod is also simplified by torsion spring
為了更準確和全面地研究火炮牽引行駛過程中出現的振動,建立了非線性自適應隨機接地印跡的輪胎力學模型,該模型能很好地研究路面不平度對火炮牽引系統的垂直和縱向激勵;牽引車懸架簡化為彈簧阻尼系統;火炮扭轉桿簡化為扭簧。Perfectly prepared, we sang in such concord that the fifty chorus members sounded like one person singing. our harmonious voices reverberated so powerfully that they soared to heaven, and even i felt extremely touched. i am very grateful to god for granting me this unforgettable opportunity to immerse myself in master s ocean of love through music
五月五日終于登場了,我們準備就緒,大家聲高唱,五十位團員唱出來卻好似只有一個聲音,其共鳴的震撼力直達天庭,連自己都感動不已,也深深感激這終生難忘的機會,讓我有幸能夠徜徉在師父的愛海里。Sgk - b250 plastic pipe belling machine attribute semiautomatic opportunities for the single - use. such models use infrared heating, molding method adopts expand the headers to finalize the design, orifice size precise shape. the control panel don ' t have the conversion switch to control over the type of solvent for expansion socket ( vertical ) and ring - for flexibility expansion socket ( r ). expanding way is very easy choice and technics adaptability is strong, the main electrical control components are imported, system performance is stable and reliable
B250塑料硬管擴口機,屬半自動型作單機使用,擴管時管材由人工搬至擴管工位:這種機型採用紅外線加熱方式:成型方式均採用擴管頭定型方式,管口成型尺寸準確:該機型在控制面板上沒有擴溶劑型承插口(直口)和擴彈性密封圈型承插口( r口)的轉換開關,擴管方式選擇十分方便,工藝適應性強:主要的電器控制元件均採用進口元件,系統性能穩定可靠。So this management system can give decision - maker messages at random, timely, precisely. this system has system operating interface facing directly decision - maker, multidimensional view and data mining, information analysis function, etc. this thesis adopts relevant security technology in order to ensure i nformation system ' s safety and maps out a program and has achieved network ' s safety management
本文開發了省中醫局辦公自動化系統、辦公自動化業務信息系統及省中醫局下屬部門綜合信息系統應用軟體,具有及時、準確、隨機地向決策者提供信息;直接面向決策者的系統操作界面、提供多層次的信息、多維數據視圖及數據挖掘等特點。Its feature is that the work position of all pre - collimator ' s holes can be selected and put into the use by the computer automatically. 4
其特點是工作的各準直孔徑位置和安全位置可通過計算機控制自動進行切換,使用靈活、方便、安全,以滿足我們多種檢測的需要。分享友人